UG | Custom geo | House Finish – Swamp Dip |Ritchey Adventure fork | Gravel Adventure 650b wheelset
UG | Custom Size | House Finish -Chilly Manilly | Lauff fork | Gravel Adventure 650b wheelset
The Utra Grav Grav Kitchen Sink
The UG is the gravel bike built for adventure-groading and fast off-roadin.
Developed from our MK1 OG frame design and a 650b high volume tyre the UG is our effort to make a bike tweaked for longer rides and bike packing without sacrificing on ride feel, or making an any less off-road capable and shreddable design. The UG is a lightweight steel fun bike designed specifically with the road-to-gravel-to-gnar ratio found most often when gravel riding in the UK. This do-it-all gravelling adventure-ready frame set is for 1X or 2X and a carbon or steel fork for packing up or packing light but never packing in.
A true all around frame set that can be built as a fast groader or long haul ultra roader. However you roll, you’re gonna want a UG as your friend in the wilderness!
MK2 UG is now for 395mm axle to crown tapered steerer forks and comes with clearance for both 650b x 2.1 and 700c x 44mm tyres in the same frame. Available with a choice of carbon fork and now with our new steel UG SAF adventure fork for the full steel feels.
The selections below allow you to customise your UG frame / frameset / rolling chassis and some components.
If you are looking for a complete bike build please just get in touch.
Payment and finance options
XS | S | M | L | XL | |
|---|---|---|---|---|---|
SADDLE HEIGHT GUIDE - height range with 100mm dropper post | 640/700 | 660/720 | 690/750 | 730/790 | 760/820 |
HANDLEBAR REACH - reach range with 20mm spacers, saddle zeroed on the rails of an inline seatpost, 0deg stem | 414/472 | 450/509 | 494/544 | 500/559 | 532/592 |
STEM LENGTH SUGGESTION | 70/90 | 80/100 | 90/100 | 90/110 | 100/120 |
MAX SPACER WITH CARBON FORK | 30mm | 30mm | 30mm | 30mm | 30mm |
WHEEL SIZE | 650b/700c | 650b/700c | 650b/700c | 650b/700c | 650b/700c |
MAX TYRE | 2.1"/44mm | 2.1"/44mm | 2.1"/44mm | 2.1"/44mm | 2.1"/44mm |
WHEELBASE | 988 | 1000 | 1021 | 1032 | 1051 |
STANDOVER HEIGHT - at centre of toptube | 736 | 761 | 784 | 822 | 848 |
saddle length used for measurements | 266 | 266 | 266 | 270 | 270 |
We have deliberated at great length over the geo numbers –
in fact we worked on this with a specialist, Tim from Soigneur Bike Fitting – the result is a gravel bike optimised for longer days in the saddle while not compromising on the ride.
So, have a look at the table below to see which size is best for you.
XS | S | M | L | XL | |
|---|---|---|---|---|---|
1 FRAME STACK | 526 | 547 | 568 | 589 | 612 |
2 FRAME REACH | 357 | 362 | 381 | 391 | 403 |
3 EFFECTIVE TOP TUBE | 505 | 515 | 545 | 560 | 578 |
4 SEAT TUBE (CTC) | 425 | 450 | 480 | 510 | 540 |
5 BB DROP | 66 | 66 | 68 | 68 | 68 |
6 WHEELBASE | 988 | 1000 | 1021 | 1032 | 1051 |
7 CHAINSTAY | 425 | 425 | 425 | 425 | 425 |
8 HEAD TUBE | 100 | 120 | 140 | 160 | 180 |
9 SEAT TUBE ANGLE | 74.5 | 74.5 | 74 | 74 | 74 |
10 HEAD TUBE ANGLE | 70.5 | 71 | 71.5 | 72 | 72.5 |
RAKE | 48 | 48 | 48 | 48 | 48 |
TRAIL | 68 | 65 | 61 | 59 | 57 |
WHEEL SIZE | 650x2.1 / 700x44 | 650x2.1 / 700x44 | 650x2.1 / 700x44 | 650x2.1 / 700x44 | 650x2.1 / 700x44 |
Please see the Contact Points tab if this is all a bit confusing.
Frame geometry affects bicycle handling and therefore can be quite different between two bicycles of the same fit/size.
So,
if the numbers on the Sizing table are a little confusing and do not compare to your current frame then please fill in the form below (as best you can) and we will get back to you with a custom fit drawing and frame size suggestion in 1-2 working days.
+ £350
8-12 week turnaround
We have tried to set up the sizes to cover most people,
however! everyone is different.
So if you need custom sizing that can be arranged. We build everything in house after all.
What we’ll be needing from you:
preferably from Bike Fit data (e.g. from a bike fitter like Soigneur)
but we are also happy to use fit information – contact points – from a bicycle you are perfectly comfortable on already.
As always, if you’re unsure about anything say the word and we can help you figure it out.
and have an exciting idea just get in touch on the contact form below.Check out our CUSTOM DEEP DIVE page for full custom inspo.
Choose one of our classic Stayer close-colour fades, the industrial rAwrAw or our new dusty Salmon!
Each are hardwearing powdercoats with painted decals.
Find more examples for each of the finishes here.
rAwrAw
phosphate dipped and clear-lacquered, giving a durable ‘RAW’ look finish where you can still see the welds and all those perfect imperfections
Swamp Dip
a double dunk in Shrek soup
How Now
Mooooolicious
Appelblauwzeegroen
appel (apple) + blauw (blue) + zee (sea) + groen (green)
Chillymanilly
as cold as your frosty nubbins after a windy winter whap on the whip up the woods
Flamingo friend
dream of salmon with your friend for life
Get your frame custom powdercoated in a RAL Classic colour of your choice with black or white lettering.
Below is a selection of the RAL Classic colours, please see all colour options here.
Note : these colours (on any website/screen) are meant as a guide only, the finished colour may not be as shown here. To see what these colours truly look like in the flesh please consult a RAL colour fan deck.
